Legendary Pokémon

Like the other games, there are a few Legendary Pokémon to be found within the Galar region. These Pokémon are the most powerful ones around and are difficult to capture

Eternatus

Location: Energy Plant

During the game's story, Chairman Rose will awaken Eternatus and use its power to bring the Darkest Day. Leon, as Champion, is trying to take it on but is struggling so it ends up being up to you to battle Eternatus, the mysterious Legendary Pokémon. This, however, cannot be captured

Eternatus
Level 60
OT:Yours
ID:Yours
Ability:Pressure
Cross Poison
Dragon Pulse
Flamethrower
Dynamax Cannon

After defeating it, it will end up changing form in a Dynamax style change called Eternamax. This form has the highest base stats to exist for a Pokémon and has to be faced in a Max Raid Battle while teamed with Hop, Zacian and Zamazenta. After defeating it, you have the chance to capture the Legendary Pokémon

Eternatus
Level 60
OT:Yours
ID:Yours
Ability:Pressure
??? Nature.
Date of Receiving
Energy Plant. Caught at Lv. 60
Cross Poison
Dragon Pulse
Flamethrower
Dynamax Cannon
Eternatus
Eternatus

Zacian / Zamazenta

Location: Energy Plant

In the post-game, you will be hunting down Sordard and Shielbert and face their claims that Sonia's book about the history of Zacian and Zamazenta are inaccurate and they're descendants of the true heroes of the Galar region. In doing so, they'll attack the Legendary Pokémon of the other game causing you to have to fight it. Once defeated, the other Legendary will appear and will challenge you to a battle. They come with the item attached that lets them change the form. You get Zacian in Pokémon Sword and Zamazenta in Pokémon Shield

Zacian
Level 70
OT:Yours
ID:Yours
Ability:Intrepid Sword
Hold Item:
Rusted Sword Image
Rusted Sword
Sacred Sword
Swords Dance
Iron Head / Behemoth Blade
Crunch
Zamazenta
Level 70
OT:Yours
ID:Yours
Ability:Dauntless Shield
Hold Item:
Rusted Shield Image
Rusted Shield
Slash
Crunch
Iron Head / Behemoth Bash
Iron Defense
Zacian

Type: Null

Location: Battle Tower

After completing the league and becoming Champion, when you go to the Battle Tower, you will find a member of League Staff with a Type: Null. She will say she needs a trainer to take care of it and offers it to you. She also gives you all the Memory items for when it evolves.

Poké Ball Type: Null
Level 50
OT:Yours
ID:Yours
Ability:Battle Armor
??? Nature.
Date of Receiving
Battle Tower6. Level Met: 50
Tri Attack
X-Scissor
Iron Head
Take Down
Type: Null Gift

Calyrex

Location: Crown Shrine

Getting Calyrex, Gastrier and Spectrier is a long process. To do it, you need to follow Calyrex's story and help it be remembered and build the Reins of Unity. First you need to get Carrot Seeds for Dynite Ore in Freezington. As the story progresses, you'll get the choice of whether to plant it in the Icy area or in the Old Cemetry. If you select the Ice area you'll get Glastrier and if you select the Cemetry you get Spectrier. After you battle the horses in Freezington, it'll run off. Calyrex suggests going to its old shrine with the carrot to lure it.
When there, Calyrex will re-tame its old steed and say that it will allow itself to be captured if you managed to defeat it in its full form. You will face off against Calyrex and catch it in its full form. Once caught, you can unfuse it to get the horse.

You need to be Champion to catch Calyrex.

Calyrex
Level 80
OT:Yours
ID:Yours
Ability:Unnerve
??? Nature.
Date of Receiving
Crown Shrine. Level Met: 80
Psychic
Giga Drain
Glastrier
Level 75
OT:Yours
ID:Yours
Ability:Chilling Neigh
??? Nature.
Date of Receiving
Crown Shrine. Level Met: 75
Taunt
Double-Edge
Swords Dance
Icicle Crash
Spectrier
Level 75
OT:Yours
ID:Yours
Ability:Grim Neigh
??? Nature.
Date of Receiving
Crown Shrine. Level Met: 75
Thrash
Double-Edge
Disable
Nasty Plot
Calyrex

Regirock

Location: Rock Peak Ruins

As part of the "The Terrible Titans... Lurking Locked Away" story, you'll be able to hunt down the three titans. You'll find Rock Peak Ruins in the south-east of the Giant's Bed. If you have your lead Pokémon hold an everstone, the door will open to the temple. Highlight all the lights on the floor to encounter Regirock. You'll need 7 badges to catch it.

Regirock
Level 70
OT:Yours
ID:Yours
Ability:Clear Body
??? Nature.
Date of Receiving
Rock Peak Ruins. Level Met: 70
Superpower
Stone Edge
Hammer Arm
Curse
Regirock

Regice

Location: Iceberg Ruins

As part of the "The Terrible Titans... Lurking Locked Away" story, you'll be able to hunt down the three titans. You'll find Iceberg Ruins in the west of the Snowslide Slope. If you have your lead Pokémon be Cryogonal, the door will open to the temple. Highlight all the lights on the floor to encounter Regice. You'll need 7 badges to catch it.

Regice
Level 70
OT:Yours
ID:Yours
Ability:Clear Body
??? Nature.
Date of Receiving
Iceberg Ruins. Level Met: 70
Ice Beam
Zap Cannon
Amnesia
Icy Wind
Regirock

Registeel

Location: Iron Ruins

As part of the "The Terrible Titans... Lurking Locked Away" story, you'll be able to hunt down the three titans. You'll find Iron Ruins in the west of the Giant's Bed. If you have whistle, the door will open to the temple. Highlight all the lights on the floor to encounter Registeel. You'll need 7 badges to catch it.

Registeel
Level 70
OT:Yours
ID:Yours
Ability:Clear Body
??? Nature.
Date of Receiving
Iron Ruins. Level Met: 70
Heavy Slam
Flash Cannon
Iron Defense
Charge Beam
Regirock

Regieleki & Regidrago

Location: Split-DecisiRuins

As part of the "The Terrible Titans... Lurking Locked Away" story, you'll be able to hunt down the new titans. You'll find Split-DecisiRuins Ruins in Three-Point Pass. If you have Regirock, Regice and Registeel then the door will open. Light up the floor based on Regieleki or Regidrago's patterns and they will attack. You can only choose one. You'll need 7 badges to catch it.

Regieleki
Level 70
OT:Yours
ID:Yours
Ability:Transistor
??? Nature.
Date of Receiving
Split-DecisiRuins. Level Met: 70
Thunder Cage
Electroweb
Extreme Speed
Magnet Rise
Regidrago
Level 70
OT:Yours
ID:Yours
Ability:Dragon's Maw
??? Nature.
Date of Receiving
Split-DecisiRuins. Level Met: 70
Dragon Energy
Dragon Claw
Hammer Arm
Laser Focus
Regidrago

Regigigas

Location: Giant's Bed

In Giant's Bed, there's a Raid Den where you cannot put a Wishing Piece in. However, this isn't just an empty place but rather the location of Regigigas. If you have Regirock, Regice, Registeel, Regieleki and Regidrago in your party, if you go to the den and interact with it, Regigigas will pull you into a Max Raid Battle.

Regigigas
Level 100
OT:Yours
ID:Yours
Ability:Slow Start
??? Nature.
Date of Receiving
Giant's Bed. Level Met: 100
Giga Impact
Zen Headbutt
Hammer Arm
Crush Grip
Regigigas

Galarian Articuno

Location: The Crown Tundra

As part of the "A Legendary Tree of A Legendary Three" story, you'll be able to hunt down the Galarian Birds. When you first reach the Dyna Tree in The Crown Tundra, you'll see all three birds attacking eachother but, when they see you, they'll fly off.
Galarian Articuno can be found flying around The Crown Tundra. When you reach it, it'll stop and start making mirages of itself until you interact with the correct one

Articuno
Level 70
OT:Yours
ID:Yours
Ability:Competitive
??? Nature.
Date of Receiving
???. Level Met: 70
Freezing Glare
Hurricane
Psycho Cut
Psycho Shift
Articuno

Galarian Zapdos

Location: The Wild Area

As part of the "A Legendary Tree of A Legendary Three" story, you'll be able to hunt down the Galarian Birds. When you first reach the Dyna Tree in The Crown Tundra, you'll see all three birds attacking eachother but, when they see you, they'll fly off.
Galarian Zapdos can be found running around the Wild Area and will require you to catch up to it

Zapdos
Level 70
OT:Yours
ID:Yours
Ability:Defiant
??? Nature.
Date of Receiving
???. Level Met: 70
Thunderous Kick
Drill Peck
Reversal
Focus Energy
Zapdos

Galarian Moltres

Location: The Isle of Armor

As part of the "A Legendary Tree of A Legendary Three" story, you'll be able to hunt down the Galarian Birds. When you first reach the Dyna Tree in The Crown Tundra, you'll see all three birds attacking eachother but, when they see you, they'll fly off.
Galarian Moltres can be found doing circles of the Isle of Armor. To get to it, you have to dart ahead of its path and it'll then attack

Moltres
Level 70
OT:Yours
ID:Yours
Ability:Berserk
??? Nature.
Date of Receiving
???. Level Met: 70
Fiery Wrath
Hurricane
Sucker Punch
Nasty Plot
Moltres

Cobalion

Location: Frigid Sea

After you encounter Sonia, you'll be able to find various footprints dotted around The Crown Tundra. Around the Frigid Sea, Roaring-Sea Caves and nearby areas, you'll be able to find Cobalion's footprints. There are many dotted around the area and they do repopulate at random positions. Once you have 50, then Cobalion will appear in Frigid Sea

Cobalion
Level 70
OT:Yours
ID:Yours
Ability:Justified
??? Nature.
Date of Receiving
Frigid Sea. Level Met: 70
Sacred Sword
Swords Dance
Iron Head
Close Combat
Cobalion

Terrakion

Location: Lakeside Cave

After you encounter Sonia, you'll be able to find various footprints dotted around The Crown Tundra. Around the Lakeside Cave, Ballimere Lake and nearby areas, you'll be able to find Terrakion footprints. There are many dotted around the area and they do repopulate at random positions. Once you have 50, then Terrakion will appear in Lakeside Cave

Terrakion
Level 70
OT:Yours
ID:Yours
Ability:Justified
??? Nature.
Date of Receiving
Lakeside Cave. Level Met: 70
Sacred Sword
Swords Dance
Stone Edge
Close Combat
Terrakion

Virizion

Location: Giant's Bed

After you encounter Sonia, you'll be able to find various footprints dotted around The Crown Tundra. Around the Giant's Bed and nearby areas, you'll be able to find Virizion footprints. There are many dotted around the area and they do repopulate at random positions. Once you have 50, then Virizion will appear in Giant's Bed

Virizion
Level 70
OT:Yours
ID:Yours
Ability:Justified
??? Nature.
Date of Receiving
Giant's Bed. Level Met: 70
Sacred Sword
Swords Dance
Leaf Blade
Close Combat
Virizion

Keldeo

Location: Ballimere Lake

In Ballimere Lake, there's a small island where there's an empty pot. If you take Cobalion, Terrakion and Virizion there and make a curry, Keldeo will appear and can be battled

Keldeo
Level 65
OT:Yours
ID:Yours
Ability:Justified
??? Nature.
Date of Receiving
Ballimere Lake . Level Met: 65
Secret Sword
Sacred Sword
Swords Dance
Hydro Pump
Keldeo

Cosmog

Location: Freezington

After saving the village from the onslaught of Glastrier or Spectrier, a woman in Freezington will offer you Cosmog that she has nicknamed Fwoofy.

Poké Ball Cosmog
Level 5
OT:Yours
ID:Yours
Ability:Unaware
??? Nature.
Date of Receiving
Freezington. Level Met: 5
Splash
Teleport
Cosmog Gift

Poipole

Location: Max Lair

After you have successfully catching 5 Ultra Beast Dynamax Adventures battles and have started the Ultra Beast story, a Poipole will appear in the Max Lair. This Poipole was found when the Ultra Wormholes opened up but keeps getting away from the leader of the Dynamax Adventures. She requests you take care of it.

Poipole Poipole
Level 20
OT:Yours
ID:Yours
Ability:Beast Boost
??? Nature.
Date of Receiving
Max Lair. Level Met: 20
Helping Hand
Acid
Fury Attack
Fell Stinger
Poipole Gift